Any Idea what can cause this behavior? On my maschine its even worse then Kova describes it.

About the fps:I will get ~180 with the version released, about ~270 when useing System.setProperty("sun.java2d.d3d","True"); [opengl will not work at all] and whats kinda curious: when changing the max amount of different tiles (which are strored in a simple array) form 192 to 6 about ~500 fps.

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